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Full-Text Articles in Life Sciences

Comments On Proposed Modifications Of The Fisheries Management Plan For Sharks Of The Atlantic Ocean, J. A. Musick Nov 1994

Comments On Proposed Modifications Of The Fisheries Management Plan For Sharks Of The Atlantic Ocean, J. A. Musick

Reports

No abstract provided.


Vims/W&M Blue Crab Fishery Statement, Rom Lipcius, Jacques Van Montfrans Oct 1994

Vims/W&M Blue Crab Fishery Statement, Rom Lipcius, Jacques Van Montfrans

Reports

No abstract provided.


Estimation Of Relative Abundance Of Recreationally Important Finfish In The Virginia Portion Of Chesapeake Bay: Annual Progress Report 1993-1994, Patrick J. Geer, Herb M. Austin Sep 1994

Estimation Of Relative Abundance Of Recreationally Important Finfish In The Virginia Portion Of Chesapeake Bay: Annual Progress Report 1993-1994, Patrick J. Geer, Herb M. Austin

Reports

Provisional annual indices of juvenile abundance have been generated from trawl survey data for six species of key recreational importance in the Virginia portion of Chesapeake Bay (spot, croaker, weakfish, summer flounder, black sea bass and striped bass) and two species of secondary importance (scup and white perch) for the period 1988-1993. No species has shown a continuous trend during the six year period. Spot has shown the largest decline from a high geometric mean catch per trawl of 68 (1988) to a low (1992) of 2, recovering to 9. 7 in 1993. Atlantic croaker continued to decline reaching levels …


Harvest Efficiency And Size Selectivity Of 3.00 And 3.25-Lnch Sea Scallop Dredge Rings, William D. Dupaul, James E. Kirkley Jul 1994

Harvest Efficiency And Size Selectivity Of 3.00 And 3.25-Lnch Sea Scallop Dredge Rings, William D. Dupaul, James E. Kirkley

Reports

No abstract provided.


The Role Of Tournaments As A Fishery Management Tool Data Collection, Herbert M. Austin Jun 1994

The Role Of Tournaments As A Fishery Management Tool Data Collection, Herbert M. Austin

Reports

No abstract provided.


Length Frequency Observations Of Lophius Americanus Taken During One Trip Aboard A Commercial Scalloper, Ryan Carnegie May 1994

Length Frequency Observations Of Lophius Americanus Taken During One Trip Aboard A Commercial Scalloper, Ryan Carnegie

Reports

No abstract provided.


Juvenile Finfish And Blue Crab Stock Assessment Program Bottom Trawl Survey Annual Data Summary Report Series Volume 1988, Michael F. Land, Patrick J. Geer, Christopher F. Bonzek, Herbert M. Austin May 1994

Juvenile Finfish And Blue Crab Stock Assessment Program Bottom Trawl Survey Annual Data Summary Report Series Volume 1988, Michael F. Land, Patrick J. Geer, Christopher F. Bonzek, Herbert M. Austin

Reports

The Virginia Institute of Marine Science (VIMS) has conducted a trawl survey of the Virginia tributaries to the Chesapeake Bay dating back to 1955. Over these forty years, methods and objectives have varied according to funding sources and state and/ or federal mandates. The present thrust of the program is to provide juvenile indices of relative abundance of recreationally, commercially, and ecologically important finfish and invertebrates. In 1988, the main area of focus was as a monitoring device of the resources of the Chesapeake Bay and its tributaries, as well as a way to create juvenile indices of key target …


Juvenile Finfish And Blue Crab Stock Assessment Program Bottom Trawl Survey Annual Data Summary Report Series Volume 1993, Patrick J. Geer, Christopher F. Bonzek, Herbert M. Austin Apr 1994

Juvenile Finfish And Blue Crab Stock Assessment Program Bottom Trawl Survey Annual Data Summary Report Series Volume 1993, Patrick J. Geer, Christopher F. Bonzek, Herbert M. Austin

Reports

The Virginia Institute of Marine Science (VIMS) has conducted a trawl survey dating back to 1955. Over these forty years methods and objectives have varied according to funding sources and state and/or federal mandates. The present thrust of the program is to provide juvenile indices of relative abundance for recreationally, commercially, and ecologically important finfish and invertebrates. These measures of juvenile abundance are widely used as a key element in the management of the Atlantic States' coastal fishery resources. Estimates of juveniles (age-0) have been found to provide a reliable and early indicator of future year class strength. A review …


Thoughts On Flounder Management And The Need For Action In Virginia, Herbert M. Austin Mar 1994

Thoughts On Flounder Management And The Need For Action In Virginia, Herbert M. Austin

Reports

No abstract provided.


Juvenile Finfish And Blue Crab Stock Assessment Program Bottom Trawl Survey Annual Data Summary Report Series Volume 1986, Michael F. Land, Patrick J. Geer, Christopher F. Bonzek, Herbert M. Austin Mar 1994

Juvenile Finfish And Blue Crab Stock Assessment Program Bottom Trawl Survey Annual Data Summary Report Series Volume 1986, Michael F. Land, Patrick J. Geer, Christopher F. Bonzek, Herbert M. Austin

Reports

This report summarizes data collected by the Virginia Institute of Marine Science (VIMS) monthly trawl survey cruises for January-December 1986. The trawl survey is a long term, broad scope monitoring program. Its present primary goal is to produce annual indices of juvenile (young-of-year) abundance of commercially, recreationally and ecologically important marine and estuarine finfish and crustaceans. The objective is to provide indices of sufficient accuracy and precision for both immediate resource management needs and long-term understanding of environmental influences of fishery resources. A second important product of this effort is the documentation and monitoring of habitat utilization by juveniles and …


Juvenile Finfish And Blue Crab Stock Assessment Program Bottom Trawl Survey Annual Data Summary Report Series Volume 1987, Joy C. Dameron, Patrick J. Geer, Christopher F. Bonzek, Herbert M. Austin Mar 1994

Juvenile Finfish And Blue Crab Stock Assessment Program Bottom Trawl Survey Annual Data Summary Report Series Volume 1987, Joy C. Dameron, Patrick J. Geer, Christopher F. Bonzek, Herbert M. Austin

Reports

The Virginia Institute of Marine Science (VIMS) has conducted a trawl survey dating back to 1955. Over these forty years methods and objectives have varied according to funding sources and state and/or federal mandates. The present thrust of the program is to provide juvenile indices of relative abundance for recreationally, commercially, and ecologically important finfish and invertebrates. These measures of juvenile abundance are widely used as a key element in the management of the Atlantic States' coastal fishery resources and serve as an early indicator of future year class strength. The most abundant species captured in 1987 continued to be …


A Report To The Sea Scallop Plan Development Team: Preliminary Assessment Of 3.25" Ring Dredge, William Dupaul, James Kirkley Feb 1994

A Report To The Sea Scallop Plan Development Team: Preliminary Assessment Of 3.25" Ring Dredge, William Dupaul, James Kirkley

Reports

No abstract provided.


1994 South Dakota Beef Report, Department Of Animal And Range Sciences, South Dakota State University, Agricultural Experiment Station, South Dakota State University, Cooperative Extension Service, South Dakota State University Jan 1994

1994 South Dakota Beef Report, Department Of Animal And Range Sciences, South Dakota State University, Agricultural Experiment Station, South Dakota State University, Cooperative Extension Service, South Dakota State University

South Dakota Beef Report, 1994

This is the 1994 South Dakota Beef Report. The articles published in this report summarize many of the beef cattle research activities conducted at South Dakota State University during 1994. The articles in this report have many levels of application. Some information has immediate application for your farm, ranch, or agribusiness. The articles include information on nutrition , breeding and genetics, management, health, growth and development, and economics of the cattle and beef industry in South Dakota.


Evidence For A Relation Between A White Perch Young-Of-The-Year Index And Indices Of Later Life Stages, Thomas C. Mosca Iii, Herbert Austin, David M. Plotner Jan 1994

Evidence For A Relation Between A White Perch Young-Of-The-Year Index And Indices Of Later Life Stages, Thomas C. Mosca Iii, Herbert Austin, David M. Plotner

Reports

Juvenile indices are employed in fisheries management to predict the future relative abundance of harvestable adults and to monitor the success of management efforts. Frequently, regulations controlling utilization of the resource, and a lack of fishery independent abundance data, make verification of the prediction impossible. In the case of white perch (Morone americana) in Virginia, this is not so. Using the weighting system developed for a Chesapeake Bay-wide index of juvenile striped bass abundance based on summertime beach seine data collected in nursery ground waters, we developed a similar index for white perch in the Virginia portion of the Bay. …